Question: What television station does Oprah Winfrey work for?
Paraphrase: What tv station does Oprah Winfrey work for?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q55800 wdt:P108 ?obj . ?obj wdt:P31 wd:Q1616075 } 
Answer: WLS-TV, WJZ-TV, WTVF